First reference hardware
A small, quiet appliance that does two jobs. For its owner: capable private AI, designed so your data never has to leave the building — and working even when the internet goes down. For the network: a verified, attestable node the Grid can trust. The Vault proves the model end-to-end; other trusted hardware can follow.
Day-one value
That's the test we hold ourselves to. The Vault must stand on its own as a product — the network comes second. Here's what you get from day one:
Capable AI models run on the device itself. No queue, no subscription-metered answers, no latency to a far-away warehouse.
Documents, photos, calendar, finances, home devices — an AI that understands your life, stored locally, under your keys.
Automations and assistants that act inside your four walls — not in someone else's cloud account.
Encrypted personal data store with hardware-backed keys. Your backup doesn't become someone else's training data.
No connection required for the core experience. Your AI is a utility, like your heating — not a remote service that can be switched off.
Managed software and model updates from Sarv — you get better models over time without lifting a finger.
Why now
AI that once filled a data centre now fits in a box the size of a shoebox. Efficient open models, dedicated home-AI hardware, and soaring demand for privacy have converged in the last eighteen months. Five years ago the Vault was impossible. In five years, devices like it will be ordinary.
Inside the box
Powerful models run locally — fast and offline-capable. The assistant answers here, not in a warehouse.
Documents, photos and personal context stay yours, in an encrypted store with hardware-backed keys held on the device.
Approved idle capacity can join the Sarv Grid — attested before work flows, sealed in an enclave designed to be blind to everything personal, zeroised when each job completes. Opt-in, always.
Workloads respond to price, carbon and local power. The Vault does its heaviest lifting when energy is cheapest and cleanest. Compute follows energy →
How you pay
The Vault is a one-off purchase; Sarv's managed software, models and updates are a monthly subscription. Joining the Grid is a separate, opt-in choice — earnings, if they come, are a consequence of a working network, not the reason to buy. Illustrative example economics:
| Item | Example* |
|---|---|
| Hardware cost (bill of materials) | £1,800* |
| Customer price (pilot-subsidised) | £1,200* |
| Private AI subscription | £45 / mo* |
| Possible Grid earnings to you | £0–60 / mo* |
| Illustrative payback if the Grid works | ~6 months* |
* Every figure on this page is an illustrative hypothesis. The 100-Vault pilot exists to replace them with measurements — including whether anyone would buy a Vault that earned £0. See the experiment →
Why build hardware at all?
A trust layer is only as strong as what each node can prove. Starting with our own appliance means every pilot node is identical, attestable and auditable — the cleanest possible test of the Grid. Once the protocol is proven on the Vault, the same verification can open to other trusted hardware: Apple Silicon, PCs, enterprise appliances. The Grid is the company; the Vault is where it starts.
Join the network